Time and Work Practice Test 4 with solutions

Question : 3 of 40

Marks: +1, -0

Sonal can do

4/9

th of a work in 36 days, where as Sunil completed the remaining work in 25 days. Working together in how many days can they both accomplish work?

Solution:

Sonal alone can complete the work in
=

36 × 9/4

= 81 days
Sunil alone can complete the work in

25 × 9/5

= 45 days
Work done by together in one day
=

1/{81}+1/{45}

{13}/{405}

Number of days both take to complete the work
=

{405}/{13}

31 2/{13}

days

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